1. Which of the following is the recommended depth of chest compressions for adults during CPR?

A. 2 inches

B. 1 inch

C. 3 inches

D. 4 inches

Answer: A. 2 inches

Rationale: The recommended depth of chest compressions for adults is 2 inches to ensure adequate

blood flow.

2. In which position should the patient be placed before initiating CPR?

A. Supine position

B. Prone position

C. Lateral position

D. Trendelenburg position

Answer: A. Supine position

Rationale: The patient should be placed in the supine position to facilitate effective chest compressions.

3. Which technique should be used to open the airway during CPR?

A. Head tilt-chin lift

B. Jaw thrust

C. One-hand technique

D. Two-hand technique

Answer: A. Head tilt-chin lift

Rationale: The head tilt-chin lift technique helps to open the airway in most cases of suspected cardiac

arrest.

4. What is the recommended compression-to-ventilation ratio for two-rescuer adult CPR?

A. 30 compressions to 2 ventilations

B. 15 compressions to 2 ventilations

C. 30 compressions to 1 ventilation

D. 5 compressions to 1 ventilation

Answer: A. 30 compressions to 2 ventilations

Rationale: The recommended compression-to-ventilation ratio for two-rescuer adult CPR is 30

compressions to 2 ventilations.

5. Which of the following is a common cause of sudden cardiac arrest in adults?

A. Stroke

B. Heart failure

C. Seizure

D. Cardiac arrhythmia

Answer: D. Cardiac arrhythmia

Rationale: Cardiac arrhythmias, particularly ventricular fibrillation, are the most common cause of sudden

cardiac arrest in adults.

6. What is the recommended rate of chest compressions per minute during adult CPR?

A. 60-80 compressions

B. 80-100 compressions